Achronix ACE Version 5.0 User Manual

Page 166

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Chapter 3. Concepts

Select

Enabled

This radio button controls the action applied to objects in
the selection region. This setting causes the objects to be
added to the current ACE selection set.

Deselect

Disabled

This radio button controls the action applied to objects in
the selection region. This setting causes the objects to be
removed from the current ACE selection set.

Remove Placement

Disabled

This radio button controls the action applied to enabled
objects in the selection region. This setting causes the placed
instances to be un-placed.

Placement

The

Placement options control the drag-and-drop placement behavior in the Package view.

Placement Options

Option

Default

Description

Fixed Placement

Enabled

This option controls whether the placement of an instance
should be fixed or soft. Fixed placements are not changed by
the placer. Soft placements are taken as a placement hint and
may be changed by the placer.

(1)

Note:

(1)

Fixed placement should always be used to pre-place objects.

Tool Tip Text

The

Tool Tip Text options control the tooltip content while hovering over objects in the

Package view.

Tooltip Options

Option

Default

Description

Pad Site Names

Enabled

Displays the pad site name under the current mouse
position in the tooltip text.

Ball Names

Enabled

Displays the package ball name under the current mouse
position in the tooltip text.

Group Names

Enabled

Displays the I/O group name under the current mouse
position in the tooltip text.

IO Port Names

Enabled

Displays the device port (FPGA I/O) name under the
current mouse position in the tooltip text.

IO Use

Enabled

Indicates the group type: B = byte lane; G = general
purpose; C = clock capable

IO LVDS Polarity

Enabled

Displays the polarity (P or N) of the I/O buffer under the
current mouse position in the tooltip text. P = positive
polarity; N = negative polarity

IO Clock and Reset
Capability

Enabled

Displays the clock and reset capability of the I/O buffer
under the current mouse position in the tooltip text. D =
data only; RD = reset and data capable; CRD = clock, reset,
and data capable.

Instance Names

Enabled

Displays the netlist instance name of placed I/O under the
current mouse position in the tooltip text.

UG001 Rev. 5.0 - 5th December 2012

http://www.achronix.com

154

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